1 files changed, 115 insertions, 0 deletions
diff --git a/include/e500.h b/include/e500.h
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--- /dev/null
+++ b/include/e500.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2003 Motorola,Inc.
+ * Xianghua Xiao(x.xiao@motorola.com)
+ */
+
+#ifndef	__E500_H__
+#define __E500_H__
+
+#ifndef __ASSEMBLY__
+
+typedef struct
+{
+  unsigned long freqProcessor;
+  unsigned long freqSystemBus;
+} MPC85xx_SYS_INFO;
+
+#endif  /* _ASMLANGUAGE */
+
+/* Motorola E500 core provides 16 TLB1 entries; they can be used for
+ * initial memory mapping like legacy BAT registers do. Usually we
+ * use four MAS registers(MAS0-3) to operate on TLB1 entries.
+ *
+ * While there are 16 Entries with variable Page Sizes in TLB1,
+ * there are also 256 Entries with fixed 4K pages in TLB0.
+ *
+ * We also need LAWs(Local Access Window) to associate a range of
+ * the local 32-bit address space with a particular target interface
+ * such as PCI/PCI-X, RapidIO, Local Bus and DDR SDRAM.
+ *
+ * We put TLB1/LAW code here because memory mapping is board-specific
+ * instead of cpu-specific.
+ *
+ * While these macros are all nominally for TLB1 by name, they can
+ * also be used for TLB0 as well.
+ */
+
+
+/*
+ * Convert addresses to Effective and Real Page Numbers.
+ * Grab the high 20-bits and shift 'em down, dropping the "byte offset".
+ */
+#define E500_TLB_EPN(addr)	(((addr) >> 12) & 0xfffff)
+#define E500_TLB_RPN(addr)	(((addr) >> 12) & 0xfffff)
+
+
+/* MAS0
+ * tlbsel(TLB Select):0,1
+ * esel(Entry Select): 0,1,2,...,15 for TLB1
+ * nv(Next victim):0,1
+ */
+#define TLB1_MAS0(tlbsel,esel,nv) \
+			((((tlbsel) << 28) & MAS0_TLBSEL)       |\
+			(((esel) << 16) & MAS0_ESEL )           |\
+			(nv) )
+
+
+/* MAS1
+ * v(TLB valid bit):0,1
+ * iprot(invalidate protect):0,1
+ * tid(translation identity):8bit to match process IDs
+ * ts(translation space,comparing with MSR[IS,DS]): 0,1
+ * tsize(translation size):1,2,...,9(4K,16K,64K,256K,1M,4M,16M,64M,256M)
+ */
+#define TLB1_MAS1(v,iprot,tid,ts,tsize) \
+			((((v) << 31) & MAS1_VALID)             |\
+			(((iprot) << 30) & MAS1_IPROT)          |\
+			(((tid) << 16) & MAS1_TID)              |\
+			(((ts) << 12) & MAS1_TS)                |\
+			(((tsize) << 8) & MAS1_TSIZE) )
+
+
+/* MAS2
+ * epn(effective page number):20bits
+ * sharen(Shared cache state):0,1
+ * x0,x1(implementation specific page attribute):0,1
+ * w,i,m,g,e(write-through,cache-inhibited,memory coherency,guarded,
+ *      endianness):0,1
+ */
+#define TLB1_MAS2(epn,sharen,x0,x1,w,i,m,g,e) \
+			((((epn) << 12) & MAS2_EPN)             |\
+			(((sharen) << 9) & MAS2_SHAREN)         |\
+			(((x0) << 6) & MAS2_X0)                 |\
+			(((x1) << 5) & MAS2_X1)                 |\
+			(((w) << 4) & MAS2_W)                   |\
+			(((i) << 3) & MAS2_I)                   |\
+			(((m) << 2) & MAS2_M)                   |\
+			(((g) << 1) & MAS2_G)                   |\
+			(e) )
+
+
+/* MAS3
+ * rpn(real page number):20bits
+ * u0-u3(user bits, useful for page table management in OS):0,1
+ * ux,sx,uw,sw,ur,sr(permission bits, user and supervisor read,
+ *      write,execute permission).
+ */
+#define TLB1_MAS3(rpn,u0,u1,u2,u3,ux,sx,uw,sw,ur,sr) \
+			((((rpn) << 12) & MAS3_RPN)             |\
+			(((u0) << 9) & MAS3_U0)                 |\
+			(((u1) << 8) & MAS3_U1)                 |\
+			(((u2) << 7) & MAS3_U2)                 |\
+			(((u3) << 6) & MAS3_U3)                 |\
+			(((ux) << 5) & MAS3_UX)                 |\
+			(((sx) << 4) & MAS3_SX)                 |\
+			(((uw) << 3) & MAS3_UW)                 |\
+			(((sw) << 2) & MAS3_SW)                 |\
+			(((ur) << 1) & MAS3_UR)                 |\
+			(sr) )
+
+
+#define RESET_VECTOR	0xfffffffc
+#define CACHELINE_MASK	(CFG_CACHELINE_SIZE - 1) /* Address mask for cache
+						     line aligned data. */
+
+#endif	/* __E500_H__ */